1
22
23 package com.liferay.portal.kernel.messaging;
24
25 import com.liferay.portal.kernel.log.Log;
26 import com.liferay.portal.kernel.log.LogFactoryUtil;
27 import com.liferay.portal.kernel.messaging.sender.MessageSender;
28 import com.liferay.portal.kernel.messaging.sender.SingleDestinationMessageSender;
29
30
35 public abstract class BaseMessageListener implements MessageListener {
36
37 public BaseMessageListener(
38 SingleDestinationMessageSender statusSender,
39 MessageSender responseSender) {
40
41 _statusSender = statusSender;
42 _responseSender = responseSender;
43 }
44
45 public void receive(Message message) {
46 MessageStatus messageStatus = new MessageStatus();
47
48 messageStatus.startTimer();
49
50 try {
51 doReceive(message, messageStatus);
52 }
53 catch (Exception e) {
54 _log.error(
55 "Unable to process request " + message.getDestinationName(), e);
56
57 messageStatus.setException(e);
58 }
59 finally {
60 messageStatus.stopTimer();
61
62 _statusSender.send(messageStatus);
63 }
64 }
65
66 protected abstract void doReceive(
67 Message message, MessageStatus messageStatus)
68 throws Exception;
69
70 protected MessageSender getResponseSender() {
71 return _responseSender;
72 }
73
74 private static Log _log = LogFactoryUtil.getLog(BaseMessageListener.class);
75
76 private MessageSender _responseSender;
77 private SingleDestinationMessageSender _statusSender;
78
79 }